All following about 'herd immunity' true excepta Spread epidemic influenced itb Can acquired immunisationc mostly due sub-clinical infectiond Herd structure constant herd structure includespopulation belong toherd speciespresence and distributionaltered animal hosts and possible insect vector well those environmental and social factors that favour inhibitspreadinfection from host host This herd structure can never constant itsubjected new variations These new variations occur due new births new deaths and population mobilityReference:1 Park’s TextbookPreventive and Social Medicine 19th Edition; Pages

Physical quality life index (PQLI) includes following excepta Literacy rateb Infant mortality ratec Life expectancy age oned Per capita incomePer capita income not included among indicators Physical Quality Life does not measure economic growth but instead measures social economic and political policies While other three options indicators consolidate Physical Quality Life Reference:1 Park’s Textbook Preventive and Social Medicine 19th edition; Page .......

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STORY OF MBBS DOST

MBBSDost was started by Dr. Vinay Yadav in year 2009. He was a medical student then and wanted to utilize his web based hobbies to start discussion on medical topics and
AIPGMEE preparation. Thus MBBSdost was created as a simplediscussion based blog for AIPGMEE

This blog was instant hit amongst medical students and doctors preparing for AIPGMEE and state PG entrance exams.

Soon Online test series was started for AIPGMEE and thousands of medical students and doctors started using it. Many question from the test series started comming directly or indirectly is AIGMEE and state PG entrance exams. This furthor enhanced popularity of the website.

Over the time mbbsdost grew bigger and bigger. It became the leading website to help in preparation of medical PG exams like AIPGMEE, AIIMS-PG, PGI, JIPMER, MIMHANS, state PG entrance exams, USMLE, FMGE etc.

Today it has developed into India's largest medical education Portal.

ABOUT MBBS DOST

With more than 120,000 members MBBSdost.com is the leading medical education portal of India. Alexa Rank us in top 11,000 India websites.